Protected metal article



J. H. YOUNG.

PROTECTED METAL ARTICLE.

APPLICATION FILED FEB. 27| |920.

Patented J une' 27, 1922.

Evvzo z" ma www JAMES HOWARD YOUNG', OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO H. H.

ROBERTSON GO., F PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

Patented J une 27, 1922.

Application filed February 27, 1920. Serial No, 361,726.

T o all whom it may concern.k

Be it knoWn that I, JAMES HoWARD YOUNG, a citizen of the United States, residing in Pittsburgh, county of Allegheny, and State of Pennsylvania, have invented an Improvement in Protected Metal Articles, of

-Which the following description, in connection With the accompanying drawings, is a specification, like characters ont-he drawin s representing like parts.

he present invention relates to a protected metal article and is an improvement upon the protected metal article shown and described in United States Patent No.l

ing', the latter is rendered adhesive by heat,

and delays and expense havebeen caused by the shipment `of the protected metal sheet too soon after being manufactured and also when shipped in stacks or piles during Warm weather or into a region having a relatively high temperature.

The present invention has for its'object to overcome the objections above recited, and to this end, protected metal sheets of the character described are provided with an exterior layer or lm, which is soluble in water, resists sticking, vand which enables the protected metal sheets to be shipped substantially as soon as made, and further enables the protectedA sheets to be readily removed from ,contact with one another in perfect condition on the job.`

a provided with the primary coating of adhesive material b, preferably asphalt, of relatively high melting point, and having applied to it the layer c of fibrous material, such as asbestos paper or felt saturated With a relatively low-melting point asphalt, and which is encased in the sealing coating or layer e of hydrocarbonaceous material, which is substantially non-adhesive at ordinary temperatures but is rendered adhesive by heat, is and may be such as shown and described in United States Patent No.

1,277,755 dated September 3, 1918.

The protected metal sheet thus described is provided With a coating l0 of anti-stick material, suchas'` described in U. Patent No. 1,327,933,4 and composed of a cellulose base soluble in Water and a soapy solution,

vdivldual sheets due to sticking when sepa- A suitable material for forming. the ein` terior anti-stick coating or film is such as is described in "United T'States ,Patent No. 1,327,933

'Fig l 1s a plan view of a portion 'of a protected metal sheet embodying this invention, and Fig. 2,: av cross section on the line 2-l2,

Fi 1. s v v feferring to the drawing-the metal sheet lanted to me lJanuary. 13,1920.'

Which is present in suiicient quantity lto reduce the surface tension of the cellulose base an adequate amount.

The coating l0 may be applied to the coating or layer e of the protected metal sheet,

so, as to envelop the latter as represented in the drawings, or it may be applied only to the opposite surfaces of the coating e, and When thus applied, the coating e which is rendered `adhesive by heat, isl protected againstv the action -of heat, and the completed protected metal sheet isv capable of being stored or of being shipped immediately after being made, Without danger of lcontacting protected sheets adhering to one another, thereby avoiding delaysv in ship; ping, cost of storing, and defects in the inrated fromy one another on the job.

The anti-stick. coating 10 is soluble in Water and therefore can be uniformly applied to the protected metal sheet and be removed on`the job by Washing the sheets with Water, oI-,it can be removed by natural washing with rainwater after being erected in place.

Claims: I

1. A protected metal articlecomprising a metal article provided With a primary coating of fluidl or plastic adhesive material, layers of yfibrous material aiixed to the surfaces of said metal article. by said protective coating, a coating of hydrocarbonaceous weather-resisting flexible material of substantial thickness and substantially non-adhesive at, ordinary temperatures but'rendered adhesive by heat,

which is aiixed to said fibrous materi l, and a 110 i material of substantial thickness and sub l stantially non-adhesive at ordinary temperatures but rendered adhesive by heat, and a coating of anti-stick material soluble in Water and composed of'a cellulose base and a soapy material covering said hydrocarbonaceous coating.

r In testimony whereof, I have signed my name to this specification.

JAL/IES HOWARD YOUNG. 

